Technician A says that a standard spark plug can be used to check proper ignition system voltage. Technician B says that the energy required to jump the gap of a spark tester is around 3000 volts. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

A standard spark plug cannot accurately check proper ignition system voltage because it does not simulate the conditions under which the ignition system operates under load. The energy required to jump the gap of a spark tester is typically higher than 3000 volts, often around 10,000 to 25,000 volts or more, depending on the system.

Technician a Says That a Standard Spark Plug Can Be